Harrow.



J. M. D. SINGLETON.

HARROW.

APPLICATION FILED JUNE 17. 1914.

Patented M21119, 1915.

2 SHEETS-SHEET 1.

J. M. D. SINGLETON. HARROW. APPLICATION FILED JUNE 17 1914.

1,1 31,566, Patented Mar.9, 1915.

2 SHEETSSHEET 2.

J. MDSingleion 4 TTED STATES PATENT @FFTQE.

JAMES MACK DUFFIE SINGLETON, OF DUBLIN, GEO'RGIA.

HARROW.

menses.

Application filed June 17, 1914.

To all whom it may concern:

lie it known that 1, JAMES MACK DUFFIE SINGLETON, a citizen of theUnited States, residing at Dublin, in the county-of Laurens and State ofGeorgia, have invented certain new and useful Improvements in Harrows;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to harrows, and implements of like constructionwhich are used for pulverizing or preparing the soil preparatory toplanting grain therein or after the planting for purposes ofcultivation.

The primary object of this invention is the provision of an agriculturalimplement as specified, which is constructed of a plurality ofadjustably formed bars which sup- )ort harrowing teeth, and which barshave handles adjustably supported thereupon, to provide for the manualmanipulation or guidance of the implement.

lVith the foregoing and other objects in view this invention consists insuch novel features of construction, combination and arrangement ofparts as will be hereinafter more fully described, illustrated in theaccompanying drawings and claimed.

In describing the invention in detail reference will be had to theaccompanying drawings wherein like characters of reference designatelike or corresponding parts throughout the several views, and in whichFigure 1 is a side elevation of the improved harrow. Fig. 2 is a topplan view of the harrow. Fig. 3 is a detail side elevation of the hitchfor the improved harrow. Fig. 4 is a detail cross sectional view throughthe improved harrow. Fig. 5 is a detail cross sectional view, showingthe manner of overlapping of the adjustable parts of the harrow. Fig. 6is a detail view, showing the manner of attaching the harrow orcultivating teeth to the supporting frame.

Referring to the drawings, 1 designates the supporting frame of theagricultural implement or harrow as an entirety, which frame issubstantially triangular shaped, as illustrated in Fig. 2 of thedrawings. The frame 1 has a centrally disposed longitudinally extendingbrace bar 2, to the forward end of which are pivotally connected sidebars 3 and 4. The side bars 3 and 4 are piv- Specification of LettersPatent.

Patented Mar. 9, 1915.

Serial No. 845,650.

otally connected to the central brace bar 2, as shown at 5, forindependent oscillatory movement about their pivotal points, forproviding a harrow or agricultural implement which will cultivate aspace of ground of greater width, to accommodate the different kinds ofrows of growing grain, or to suit other practical conditions which mayarise during the use of the implement. The side bars 3 and 4 are formedof angle iron, and they are provided with longitudinally spaced openings5 in the side 6 forming the base of the side bars. The openings 5 areprovided for the reception of the teeth 8 used for the cultivation orpreparation of the ground. The sides 9 of the side bars 3 and 4 are alsoprovided with longitudinally spaced openings 10, which openings are inalinement with the openings 5 and are provided for the reception of Ushaped resilient gripping members 11, which pass about or encompasssubstantially threefourths of the circumference of the harrowing teeth8, and extend through the various openings 10 having their terminal endsbent substantially at right angles to the shanks thereof and lying infacial abutting engagement with the sides 9 of the side bars 3 and 4, asis clearly shown in Figs. 2 and 6 of the drawings. The U shaped members11 tend to securely hold the harrowing teeth 8 in their properpositions, and they also permit of the removal of the harrow teeth forthe replacing of broken teeth or the like.

The central spacing bar 2 has handles 12 secured thereto, which handlesextend upwardly from the frame 1, in the usual manner and have the handgripping portions 13 formed upon their upper terminal ends. The handles12 are braced by adjustable braces 14, which are connected to the sidebars 3 and 4 adjacent their lower ends, and which adjustable braces areformed of two sections of overlapping angle irons. The overlapping sidesof the angle irons of which the brace rods 14 are formed are providedwith a plurality of vertically arranged openings 15, which receive pinsfor holding the handles 12 in various adjusted positions for theaccommodation of persons of different heights.

The forward end of the central brace bar 2 has a hitching device 16secured thereto, which hitching device consists of braces or bars 17,which are secured to the bar 2 rearwardly of the forward end thereof andextend upwardly at an incline from the bar 2, having a second bar 18secured to its forward end, which bar extends downwardly from the upperend ofthe bar 17 and is secured in any suitable manner to the bar 2, asis clearly shown in Fig. 3 of the drawings. The side plates 3 and i haveears 19 secured thereto rearwardly of the bar 18, and they havepivotally connected thereto a clevis 20, which is bent forwardly fromthe ears l9 and is substantially U shaped, having its sides disposedabout the bar 18, as is clearly shown in Fig. 2 of the drawings. A linl:21 is mounted upon the clevis 20 and it has its end seated in any one ofthe various openings 22, which are formed serially in the plate 18 forholding the clevis 20 at various elevations for regulating the thrust orinsertion of the teeth 8 into the ground or for regulating the draft ofthe harrow to suit practical conditions. The rear end of the side bars 3and 1 have shaft bars 25 and 26 secured thereto respectively, and formedof angle iron having horizontal sides positioned upwardly and providedwith aplurality of longitudinally spaced openings 27, which openings areprovided for the reception of the harrow teeth 8. The openings 27 are soarranged, that when the plates 26 and 25 are adjusted for accommodatingthe distance between the terminal ends of the side bars 3 and 1-, theywill be held rigidly in place by the harrow teeth 8, which are insertedthrough coinciding openings 27 formed in the respective plates 25and'26. A link 29 is positioned above the plates 25 and 26 and alsodiagonally across the center bar 2, as is clearly shown in Fig. 2 of thedrawings, to prevent the oscillatory movement or he dislodgment of theplates with respect to each other and to the shape of the harrow.

In reducing the invention to practice certain novel features ofconstruction, combination and arrangement of parts may necessitatealterations to which the patentee is entitled, provided such alterationsare 0011].-

prehended within the scope of what is claimed; 7

Having thus described the invention what is claimed as new, is:

1. In a harrow, a pair of harrow teeth carrying bars pivotally connectedat their forward ends, and adjustable harrow teeth carrying barsadjustably connecting the free ends of said first nained bars.

2. In a harrow, a pair of harrow teeth carrying bars pivotally connectedat their forward ends, and adjustable harrow teeth carrying brace barsconnected to the rear ends of said first named bars, and a bracing bardisposed intermediate of said first named harrow teeth carrying bars andsecured to said adjustable bracing bar.

3. In a harrow, a central bracing bar, a pair of harrow teeth carryingbars pivotally connected to the forward end of said central bracing barand extending obliquely to the longitudinal lines of said central bar,means for detachably securing harrow teeth to said bars, and adjustable'harrow teeth carryingbars for holding said pivoted harrow teethcarrying bars in various adjusted positions.

I. In a harrow, a central bracing bar, a pair of harrow teeth carryingbars pivotally connected to the forward end of said central bracing barand extending obliquely to the longitudinal lines of said central bar,means for detachably securing harrow teeth to said bars, adjustableharrow teeth carrying bars for holding said pivoted harrow teethcarrying bars in various adjusted positions, handles secured to saidcentral bracing bar, and adjustable supporting bars for said handlessecured to said rear harrow teeth carrying bars.

In testimony whereof I afiix my signature in presence of twowitnesses.

JAMES MACK DUFFIE SINGLETON.

Copies of this patent may be obtained for five cents each, by addressingthe Commis'sionerof Patents,

Washington, D. G.

